Functional system with air/water medium change, in particular such as an underwater countermeasure intended for being launched in particular from a surface vessel

摘要

The system (1) has a countermeasure body (2) associated with an airbag (3), and air inlets (4, 5) inflating the bag biased in an opening position during launching of the system. The inlets are associated with closing units after launching of the system and the bag. The inlets comprise valves (8, 9) articulated on remaining portion of the system and biased in the opening position of the inlets by helical springs (6, 7). The valves are connected to bottom (10) of the bag by connection units (11) to start displacement of the valves for closing the inlets relative to a bias of the springs.